The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 02, 2003
Filed:
Mar. 30, 2001
Tetsuya Nakayasu, Saitama, JP;
Mikio Sagara, Saitama, JP;
Kyo Takahashi, Saitama, JP;
Noritoshi Iwase, Saitama, JP;
Hajime Yamada, Saitama, JP;
Atsushi Murakami, Saitama, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
An exhaust control valve has a valve housing and a valve body rotatably contained within the valve housing. The valve body cooperates with the valve housing for controlling the flow of exhaust gas. A transmission member rotationally drives a valve shaft of the valve body. The valve body is formed in a cylindrical shape and coaxially with an axis line of the valve shaft. The valve body and the valve shaft are made from a one-piece body by casting. This arrangement provides an exhaust control valve for an engine having a valve body that provides excellent sealing properties, demonstrates high response to driving torque and is easy to manufacture through casting.